Primarily acting upon hollow organs.  

Nutrition related to condition of hollow organs.  

Hollow organs and the body.  

Part of skeleton that protects hollow organs.  

Essential movements of hollow organs.  

Blocking the movements of a hollow organ.  

Urinary bladder and womb.  

Urinary bladder and embryonic cord extending from bladder to navel.  

Infected blister filled with pus.  

Urinary bladder and pubic arch.